In order to overcome strong intermolecular forces we need ...

More energy input, To add more heat to the system

Which formula do you use to calculate percentage yield?

(Actual Yield/ Theoretical Yield) x 100

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(1) Principles of Chemistry

90 termsStudBud Administration32 plays

A Quiz on the Pearson Edexcel International GCSE Chemistry Specification (2018) on (a) States of Matter, (b) Elements, compounds and mixtures, (c) Atomic Structure, (d) The periodic table, (e) Chemical Formulae, equations and calculations, (f) Ionic bonding, (g) Covalent bonding, (h) Metallic bonding and (i) Electrolysis

Flashcards90 cardsFPractice quizPHost liveL

Questions 90

Answers

1
Select the correct charge for H (hydrogen).
Neutral
+1
-2
-1
2
Which of these is a diatomic molecule?
He
Cl
Ne
Bi
3
A cation is formed by the loss of an electron.
True
False
4
Select the correct charge for OH (hydroxide).
+1
-2
-1
Neutral
5
If I have 3g of O₂, calculate the mol.
48
0.19
0.09
96
6
The transition from a solid to a liquid is called...
Freezing
Sublimation
Condensation
Melting
7
A pure substance will boil over a range of temperatures.
True
False
8
Match the definition: A group of two or more atoms that are bonded in a mixed ratio.
Molecule
42
Diatomic atom
Atom
9
Covalent molecules will conduct electricity.
False
True
10
Nobel gases reactivity is determined by their empty outer shell of electrons.
True
False
11
The cathode is the ... electrode.
Negative
Neutral
Lilac
Positive
12
The image shows ...
Element
Compound
Mixture
Cell division
13
Choose the electronic configuration for oxygen.
4, 2
2, 4
2, 6
6, 2
14
Calculate percentage yield if: Actual yield = 15 g, theoretical yield = 17.
113,33%
113%
88%
88.24%
15
What is being reduced (gaining electrons) in this electrolysis experiment?
Na+
Cl
Na
Cl-
16
Identify the atomic number.
12.01
12
6
Carbon
17
In ionic bonding, there is an electrostatic attraction between ...
Protons and electrons
Cations and delocalised electrons
Charged ions
Neutrons and electrons
18
In which of these do the particles have the most energy?
Liquid
Solid
Gas
They have the same energy.
19
Identify the mass number.
6
12
Carbon
12.01
20
Select the correct charge for NH₄ (ammonium).
-2
-1
+1
Neutral
21
What is this formula used to calulcate?
Rf - Value
For real 👊
Fr - Value
Retardation factor
22
The charge of non-metals in group 6 is ...
-2
+1
-1
+2
23
What will be the two products of this electrolysis experiment?
Na and Cl2
Na2 and Cl
Na2 & Cl2
Na and Cl
24
Nobel gases are the most reactive group of elements.
False
True
25
Calculate the relative molecular mass of NaCl (Ar_Na= 23, Ar_Cl= 35.5).
None of the above
58.443
28
58
26
The charge of non-metals in group 5 is ...
+3
-3
+2
-2
27
Match the definition: The total number of protons and neutrons in an atom.
Isotope
Atomic number
Mass Number
Diatomic number
28
As a relative molecular mass increases, the boiling point will ...
Decrease
Become a range of values
Increase
Stay the same
29
Why do covalent compounds not conduct electricity?
Too many moving ions
They don't want to
There are no charged particles
A sea of delocalised electrons
30
Match the definition: Dissolved substance.
Saturated solution
Solvent
Solute
Solution
31
The anode attracts ... charged particles.
Neutral
Negatively
Lightly
Positively
32
The charge of metals in group 3 is ...
-2
-3
+3
+2
33
Pure water will conduct electricity.
True
False
34
The charge of metals in group 1 is ...
+2
-1
+1
0
35
The charge of non-metals in group 7 is ...
+2 /-2
+2
-1
+1
36
Match the definition: The unit for the amount of substance.
Moll
Moles
Mol
Mole
37
Isotopes are elements that have different numbers of protons.
False
True
38
Calculate the relative molecular mass of H₂O (Ar_H= 1, Ar_O= 16).
17
18
33
None of the above
39
In order to overcome strong intermolecular forces we need ...
More energy input
To add more heat to the system
Less energy input
To remove heat from the system
40
Which formula do you use to calculate percentage yield?
(Actual Yield/ mol) x 1/100
(Theoretical Yield/ Actual Yield) x 100
(Actual Yield/ Theoretical Yield) x 100
(Actual Yield x mol) / 100
41
Which of these is a diatomic molecule?
B
Ni
H
Cu
42
Ionic compounds only conduct electricity in ... state.
Solid
None of these.
Gaseous
Liquid
43
Ionic compounds conduct electricity when in a solution.
True
False
44
The cathode attracts ... charged particles.
Neutral
Heavily
Negatively
Positively
45
Which is the correct half-reaction?
Na -> Na+ + 2e-
Na+ -> Na + 2e-
Na+ + e- -> Na
Na+ + 2e- -> Na
46
Match the definition: Able to dissolve other substances.
Solute
Solvent
Solution
Saturated solution
47
The image shows ...
Compound
Element
Mixture
Mickey Mouse
48
Which subatomic particle(s) are found in the nucleus of the atom?
Proton
Neutron
Electron
Jimmy
49
An atom can lose or gain protons.
False
True
50
Metals are very brittle and break easily when manipulated.
False
True
51
During a covalent bond, electrons are ...
Lost
Transferred
Shared
Gained
52
Which subatomic particle(s) do not contribute to the mass of an atom?
Electron
Neutron
Nucleus
Proton
53
Which is the correct half-reaction?
2Br- - 2e- -> Br2
2Br- -> Br2 + 2e-
2Br- + 2e- -> Br2
Br -> Br- + e-
54
Match the definition: Liquid mixture in which a component is uniformly distributed.
Solution
Saturated solution
Solvent
Solute
55
If I have 0.25 mol of H₂O, calculate mass.
4.5
72
0.45
0.01
56
The image shows ...
Ants at a picnic
Compound
Mixture
Element
57
In a covalent bond, there is an electrostatic attraction between ...
Protons and neutrons
Charged ions
Uncharged ions
Nucleus and electrons
58
Which of these subatomic particles are positively charged?
Neutron
Proton
Nucleus
Electron
59
Identify the mixture from this chromatogram.
0.5
1.0
0
None are mixtures
60
Calculate the relative molecular mass of O₂ (Ar_O= 16).
33
None of the above
16
32
61
Which of these is a diatomic molecule?
Be
C
Na
O
62
In metallic bonding, there is an electrostatic attraction between ...
Neutrons and electrons
Cations and delocalised electrons
Protons and electrons
Nucleus and electrons
63
Match the definition: The smallest part of a substance that cannot be broken down chemically.
Atom
Neutron
Soul
Molecule
64
Elements are arranged in the periodic table according to their ...
Atomic number
No arrangement. It's random
Mass number
Alphabetical Symbol
65
The charge of metals in group 2 is ...
+2 /-2
-2
0
+2
66
If I have 3g of O₂, which formula would I use to find the mol?
n=\frac{m}{Mr}
Mr=nAr
C=\frac{n}{v}
n=\frac{V}{Vm}
67
Metals only conduct electricity when molten.
True
False
68
A low melting and boiling point indicates ...
Weak attraction between molecules
Strong intermolecular forces
Weak intermolecular forces
Strong attraction between molecules
69
On which side of the periodic table do you find metals?
Left and middle
Middle only
Far right
Far Left
70
How are atoms in a liquid state arranged?
Tightly Packed
Near, but not tighly packed.
Avle to move freely.
Very loosely
71
The anode is the ... electrode.
Negative
Neutral
Orange
Positive
72
The image shows ...
Compound
Element
Some flies
Mixture
73
Calculate the relative molecular mass of C₆H₁₂O₆ (Ar_C= 12, Ar_H= 1, Ar_O= 16).
180
None of the above
29
18
74
The image shows ...
Element
Mixture
Compound
Boba
75
Metals are good conductors of ...
Orchestras
Electricity
Orcas
Heat
76
Why do elements in the same group have similar chemical properties?
They have the same number or protons and neutrons.
The have similar electron configurations.
They have similar mass numbers.
They have the same number of valence electrons.
77
The columns (going up and down) in the periodic table are called ...
Groups
Periods
Columns, duh.
Rows
78
Match the definition: A Solution that contains the maximum amount of solute.
Solute
Saturated solution
Solution
Solvent
79
An anion is formed by the loss of an electron.
False
True
80
Select the correct charge for CO₃ (carbonate).
-2
+1
Neutral
-1
81
Choose the electronic configuration for aluminium.
2, 6, 3
2, 4, 4
2, 8, 3
6, 2, 8
82
The transition from a gas to a liquid is called...
Sublimation
Deposition
Condensation
Melting
83
Choose the electronic configuration for neon.
2, 2, 2, 2
2
2, 6
2, 8
84
Select the correct charge for SO₄ (sulfate).
+1
-1
-2
Neutral
85
Ionic compounds conduct electricity in their solid state.
False
True
86
Select the correct charge for NO₃ (nitrate).
-1
Neutral
+1
-2
87
Match the definition: The number of protons in the nucleus.
Atomic Number
Isotope
Mass Number
Proton number
88
How do the atoms in a solid move?
They vibrate in place
Tightly Packed
Slowly
Rapidly
89
The transition from a liquid to a gas is called...
Melting
Evaporation
Deposition
Condensation
90
What is being oxidised (losing electrons) in this electrolysis experiment?
Na
Cl-
Cl
Na+

(1) Principles of Chemistry Flashcards | StudBud

(1) Principles of Chemistry

90 termsStudBud Administration32 plays

Flashcards90 cardsFPractice quizPHost liveL

Questions 90

Answers

1
Select the correct charge for H (hydrogen).
Neutral
+1
-2
-1
2
Which of these is a diatomic molecule?
He
Cl
Ne
Bi
3
A cation is formed by the loss of an electron.
True
False
4
Select the correct charge for OH (hydroxide).
+1
-2
-1
Neutral
5
If I have 3g of O₂, calculate the mol.
48
0.19
0.09
96
6
The transition from a solid to a liquid is called...
Freezing
Sublimation
Condensation
Melting
7
A pure substance will boil over a range of temperatures.
True
False
8
Match the definition: A group of two or more atoms that are bonded in a mixed ratio.
Molecule
42
Diatomic atom
Atom
9
Covalent molecules will conduct electricity.
False
True
10
Nobel gases reactivity is determined by their empty outer shell of electrons.
True
False
11
The cathode is the ... electrode.
Negative
Neutral
Lilac
Positive
12
The image shows ...
Element
Compound
Mixture
Cell division
13
Choose the electronic configuration for oxygen.
4, 2
2, 4
2, 6
6, 2
14
Calculate percentage yield if: Actual yield = 15 g, theoretical yield = 17.
113,33%
113%
88%
88.24%
15
What is being reduced (gaining electrons) in this electrolysis experiment?
Na+
Cl
Na
Cl-
16
Identify the atomic number.
12.01
12
6
Carbon
17
In ionic bonding, there is an electrostatic attraction between ...
Protons and electrons
Cations and delocalised electrons
Charged ions
Neutrons and electrons
18
In which of these do the particles have the most energy?
Liquid
Solid
Gas
They have the same energy.
19
Identify the mass number.
6
12
Carbon
12.01
20
Select the correct charge for NH₄ (ammonium).
-2
-1
+1
Neutral
21
What is this formula used to calulcate?
Rf - Value
For real 👊
Fr - Value
Retardation factor
22
The charge of non-metals in group 6 is ...
-2
+1
-1
+2
23
What will be the two products of this electrolysis experiment?
Na and Cl2
Na2 and Cl
Na2 & Cl2
Na and Cl
24
Nobel gases are the most reactive group of elements.
False
True
25
Calculate the relative molecular mass of NaCl (Ar_Na= 23, Ar_Cl= 35.5).
None of the above
58.443
28
58
26
The charge of non-metals in group 5 is ...
+3
-3
+2
-2
27
Match the definition: The total number of protons and neutrons in an atom.
Isotope
Atomic number
Mass Number
Diatomic number
28
As a relative molecular mass increases, the boiling point will ...
Decrease
Become a range of values
Increase
Stay the same
29
Why do covalent compounds not conduct electricity?
Too many moving ions
They don't want to
There are no charged particles
A sea of delocalised electrons
30
Match the definition: Dissolved substance.
Saturated solution
Solvent
Solute
Solution
31
The anode attracts ... charged particles.
Neutral
Negatively
Lightly
Positively
32
The charge of metals in group 3 is ...
-2
-3
+3
+2
33
Pure water will conduct electricity.
True
False
34
The charge of metals in group 1 is ...
+2
-1
+1
0
35
The charge of non-metals in group 7 is ...
+2 /-2
+2
-1
+1
36
Match the definition: The unit for the amount of substance.
Moll
Moles
Mol
Mole
37
Isotopes are elements that have different numbers of protons.
False
True
38
Calculate the relative molecular mass of H₂O (Ar_H= 1, Ar_O= 16).
17
18
33
None of the above
39
In order to overcome strong intermolecular forces we need ...
More energy input
To add more heat to the system
Less energy input
To remove heat from the system
40
Which formula do you use to calculate percentage yield?
(Actual Yield/ mol) x 1/100
(Theoretical Yield/ Actual Yield) x 100
(Actual Yield/ Theoretical Yield) x 100
(Actual Yield x mol) / 100
41
Which of these is a diatomic molecule?
B
Ni
H
Cu
42
Ionic compounds only conduct electricity in ... state.
Solid
None of these.
Gaseous
Liquid
43
Ionic compounds conduct electricity when in a solution.
True
False
44
The cathode attracts ... charged particles.
Neutral
Heavily
Negatively
Positively
45
Which is the correct half-reaction?
Na -> Na+ + 2e-
Na+ -> Na + 2e-
Na+ + e- -> Na
Na+ + 2e- -> Na
46
Match the definition: Able to dissolve other substances.
Solute
Solvent
Solution
Saturated solution
47
The image shows ...
Compound
Element
Mixture
Mickey Mouse
48
Which subatomic particle(s) are found in the nucleus of the atom?
Proton
Neutron
Electron
Jimmy
49
An atom can lose or gain protons.
False
True
50
Metals are very brittle and break easily when manipulated.
False
True
51
During a covalent bond, electrons are ...
Lost
Transferred
Shared
Gained
52
Which subatomic particle(s) do not contribute to the mass of an atom?
Electron
Neutron
Nucleus
Proton
53
Which is the correct half-reaction?
2Br- - 2e- -> Br2
2Br- -> Br2 + 2e-
2Br- + 2e- -> Br2
Br -> Br- + e-
54
Match the definition: Liquid mixture in which a component is uniformly distributed.
Solution
Saturated solution
Solvent
Solute
55
If I have 0.25 mol of H₂O, calculate mass.
4.5
72
0.45
0.01
56
The image shows ...
Ants at a picnic
Compound
Mixture
Element
57
In a covalent bond, there is an electrostatic attraction between ...
Protons and neutrons
Charged ions
Uncharged ions
Nucleus and electrons
58
Which of these subatomic particles are positively charged?
Neutron
Proton
Nucleus
Electron
59
Identify the mixture from this chromatogram.
0.5
1.0
0
None are mixtures
60
Calculate the relative molecular mass of O₂ (Ar_O= 16).
33
None of the above
16
32
61
Which of these is a diatomic molecule?
Be
C
Na
O
62
In metallic bonding, there is an electrostatic attraction between ...
Neutrons and electrons
Cations and delocalised electrons
Protons and electrons
Nucleus and electrons
63
Match the definition: The smallest part of a substance that cannot be broken down chemically.
Atom
Neutron
Soul
Molecule
64
Elements are arranged in the periodic table according to their ...
Atomic number
No arrangement. It's random
Mass number
Alphabetical Symbol
65
The charge of metals in group 2 is ...
+2 /-2
-2
0
+2
66
If I have 3g of O₂, which formula would I use to find the mol?
n=\frac{m}{Mr}
Mr=nAr
C=\frac{n}{v}
n=\frac{V}{Vm}
67
Metals only conduct electricity when molten.
True
False
68
A low melting and boiling point indicates ...
Weak attraction between molecules
Strong intermolecular forces
Weak intermolecular forces
Strong attraction between molecules
69
On which side of the periodic table do you find metals?
Left and middle
Middle only
Far right
Far Left
70
How are atoms in a liquid state arranged?
Tightly Packed
Near, but not tighly packed.
Avle to move freely.
Very loosely
71
The anode is the ... electrode.
Negative
Neutral
Orange
Positive
72
The image shows ...
Compound
Element
Some flies
Mixture
73
Calculate the relative molecular mass of C₆H₁₂O₆ (Ar_C= 12, Ar_H= 1, Ar_O= 16).
180
None of the above
29
18
74
The image shows ...
Element
Mixture
Compound
Boba
75
Metals are good conductors of ...
Orchestras
Electricity
Orcas
Heat
76
Why do elements in the same group have similar chemical properties?
They have the same number or protons and neutrons.
The have similar electron configurations.
They have similar mass numbers.
They have the same number of valence electrons.
77
The columns (going up and down) in the periodic table are called ...
Groups
Periods
Columns, duh.
Rows
78
Match the definition: A Solution that contains the maximum amount of solute.
Solute
Saturated solution
Solution
Solvent
79
An anion is formed by the loss of an electron.
False
True
80
Select the correct charge for CO₃ (carbonate).
-2
+1
Neutral
-1
81
Choose the electronic configuration for aluminium.
2, 6, 3
2, 4, 4
2, 8, 3
6, 2, 8
82
The transition from a gas to a liquid is called...
Sublimation
Deposition
Condensation
Melting
83
Choose the electronic configuration for neon.
2, 2, 2, 2
2
2, 6
2, 8
84
Select the correct charge for SO₄ (sulfate).
+1
-1
-2
Neutral
85
Ionic compounds conduct electricity in their solid state.
False
True
86
Select the correct charge for NO₃ (nitrate).
-1
Neutral
+1
-2
87
Match the definition: The number of protons in the nucleus.
Atomic Number
Isotope
Mass Number
Proton number
88
How do the atoms in a solid move?
They vibrate in place
Tightly Packed
Slowly
Rapidly
89
The transition from a liquid to a gas is called...
Melting
Evaporation
Deposition
Condensation
90
What is being oxidised (losing electrons) in this electrolysis experiment?
Na
Cl-
Cl
Na+